AJAYA KUMAR SINGH. A Generalisation of Quasi-Convex Sequence Spaces. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 3 - A, p. 123–138, 2016. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/977. Acesso em: 22 jul. 2024.